Finding the Fourth Proportional to 74,911,028.70, 112,366,543.05 and 69,984,155.10
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Solution
The fourth proportional to 74,911,028.70, 112,366,543.05 and 69,984,155.10 is: 104,976,232.65
Step by Step Solution
- Step 1: Write the proportion equation
74,911,028.70 : 112,366,543.05 = 69,984,155.10 : x - Step 2: Convert to fraction form
74,911,028.70/112,366,543.05 = 69,984,155.10/x - Step 3: Cross multiply
74,911,028.70x = 112,366,543.05 × 69,984,155.10 - Step 4: Simplify right side
74,911,028.70x = 7,863,877,576,862,026 - Step 5: Solve for x
x = 7,863,877,576,862,026/74,911,028.70 - Step 6: Final answer
x = 104,976,232.65
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.